I could have said mine popped too.....because I have no resonators, GT500 mufflers, and drive it like I stole it......but I held back.....

 

Hello My2012GT,

I recommend you make an appointment with your dealer for diagnosis and PM me with your VIN, dealer, mileage, full name, and best daytime number so I can get this escalated to the Customer Service Manager for your area.

Deysha

 

I noticed this sound on my '12 5.0 at idle as well, 2,500 miles, never raised any concerns with me either.

 

At idle my gives the occasional pop too. Like a sudden and slight change in tone and little pop.

 

EDIT - God dammit I always end up commenting on old threads that people bring back from the dead lol

 

Why is it back from the dead??! Its only like 10 days old

 

the mechanical pop/tick noise that most mechanics hear on "other cars" that have valve sealing problem or a bad exhaust manifold gasket; is kinda like a standard feature with most 5.0l engines.

it can be heard/noticed if you are in an enclosed garage or near a drive-thru walled area. same can be heard on my old '86 and '93 5.0s. i had no problem in 210,000mi with the '86 and the '93 have 193,000 on the clock now.

i know we are talking about 2 different engines here, but the thin wall shorty header design is similar with the collectors exiting near the firewall of the car. From what I understand its due to valve overlap and exhaust pulses that are audible.

I noticed the noise on my new 2012 and first thought was, "this sounds like my old 5.0".

If you're still unsure, take it in and good chance they will say its a no-defect situation.